Half tile walls, window placement and foundation issues

trying to recreate some buildings and some limitations have in fact presented themselves relating to the title.

half a tile long stairs, walls, window placements, doors all of them lock to a full tile.

foundations are probably the worst problem though, cant actually build without them once started, this feels like an oversight.

so feature request. The above basically + foundations applicable to the immediate wall segment / room you wish to build,

taller doors designed to fit into foundations to allow missmatched heights.

windows snap-to disableable with a key.

Garage doors, 5 tile long,4 wide 1 tile outside of a wall, functions as a door if a slow one, is on floor-ceiling for the adjacent wall tiles, other 3X4 tiles are ceiling only.

an actual ingame keybinds list even if its not editable.

cheers.